A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Nuts of iron or steel
NSN 5998-00-066-2172
NSN 5935-01-496-4805
NSN 6650-01-051-4972
NSN 5945-01-483-7815
NSN 5950-01-029-1437
NSN 5895-01-426-8942
NSN 5960-00-393-2505
NSN 5998-01-055-6032
NSN 5975-01-411-8819
NSN 6110-01-445-2944
NSN 6685-01-088-1667
NSN 6220-01-571-7526